DE514503C - Process for the production of esters from organic acids and polyhydric alcohols - Google Patents

Process for the production of esters from organic acids and polyhydric alcohols

Info

Publication number
DE514503C
DE514503C DEI31392D DEI0031392D DE514503C DE 514503 C DE514503 C DE 514503C DE I31392 D DEI31392 D DE I31392D DE I0031392 D DEI0031392 D DE I0031392D DE 514503 C DE514503 C DE 514503C
Authority
DE
Germany
Prior art keywords
esters
production
polyhydric alcohols
organic acids
esterification
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEI31392D
Other languages
German (de)
Inventor
Dr Walter Von Knilling
Dr Martin Luther
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI31392D priority Critical patent/DE514503C/en
Application granted granted Critical
Publication of DE514503C publication Critical patent/DE514503C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
    • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
    • C11C3/02—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with glycerol

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Gewinnung von Estern aus organischen Säuren und mehrwertigen Alkoholen Gegenstand der Erfindung ist ein Verfahren zur Veresterung in der flüssigen Phase von organischen Säuren mit mehrwertigen Alkoholen. Es eignet sich besonders für höhere Fettsäuren, z. B. zur Veresterung von Fettsäuregemischen,wie sie bei der Entsäuerung natürlicher Öle und Fette gewonnen ,werden, zu Triglyceriden.Process for obtaining esters from organic and polyvalent acids Alcohols The invention relates to a process for esterification in the liquid Phase of organic acids with polyhydric alcohols. It is particularly suitable for higher fatty acids, e.g. B. for the esterification of fatty acid mixtures, as in natural oils and fats obtained from deacidification become triglycerides.

Die bekannten Methoden zur Erzielung einer möglichst weitgehenden Veresterung durch Wegschaffen des bei der Reaktion sich bildenden Wassers durch Arbeiten im Vakuum oder Durchleiten trockner, indifferenter Gase führen erst nach langer Einwirkungszeit zum Ziele. Man kann die Reaktionszeit durch Zusatz gewisser Katalysatoren auf einen Bruchteil der sonst nötigen abkürzen, und man hat hierfür bereits als Katalysatoren u. a. Metalle, besonders Zink und Zinn, empfohlen.The known methods for achieving the most extensive possible Esterification by removing the water that forms during the reaction Working in a vacuum or passing through dryers, inert gases only after long exposure time to the goal. You can increase the response time by adding certain Shorten catalytic converters to a fraction of what is otherwise necessary, and you have to do this already as catalysts and others. Metals, especially zinc and tin, recommended.

Es wurde nun gefunden, daß Zusätze von Seifen, besonders solchen von Schwermetallen, z. B. Zinn oder Zink, gerade beim Arbeiten in größerem Maßstabe ganz vorzüglich wirksam sind und rasch eine quantitative Vereiterung ermöglichen.It has now been found that additives of soaps, especially those of Heavy metals, e.g. B. tin or zinc, especially when working on a larger scale are extremely effective and quickly enable quantitative suppuration.

Beispiel i Stöchiornetrische Mengen von Erdnußfettsäuren (Säurezahl etwa Zoo, gewonnen gemäß Patentschrift 397 332, Beispiel i) und Glycerin werden unter Zusatz von o, i °/o fettsaurem Zinn (hergestellt aus Erdnußfettsäure) unter Rühren in hohem Vakuum auf iSo bis 23o° erhitzt. Nach 4. Stunden ist die Säurezahl auf i bis 2 gesunken. Der erhaltene Ester kann, gegebenenfalls nach der Raffination, als Speiseöl benutzt oder solchem zugesetzt werden.Example i Stoichiometric amounts of peanut fatty acids (acid number such as zoo, obtained according to patent specification 397 332, example i) and glycerine with the addition of o, i ° / o fatty acid tin (made from peanut fatty acid) under Stirring in high vacuum heated to iso to 23o °. The acid number is after 4 hours dropped to i to 2. The ester obtained can, if appropriate after refining, used as edible oil or added to such.

Beispiel e Stöchiometrische Mengen von Olivenölfettsäuren (Säurezahl etwa i8o, gewonnen wie in Beispiel i angegeben) und Glycerin werden im hohen Vakuum unter kräftigem Rühren und unter Zusatz von o,2 °/o Magnesiumoleat (aus reiner Ölsäure hergestellt) 5 Stunden lang auf 17o bis 25o° erhitzt. Nach dieser Zeit ist die Säurezahl auf etwa io gesunken. Das Reaktionsprodukt ist nach geeigneter Raffination zu Speisezwecken verwendbar.Example e Stoichiometric amounts of olive oil fatty acids (acid number about 18o, obtained as indicated in Example i) and glycerol are in a high vacuum with vigorous stirring and with the addition of 0.2% magnesium oleate (from pure oleic acid prepared) heated to 17o to 25o ° for 5 hours. After this time is the acid number dropped to about io. After suitable refining, the reaction product is suitable for human consumption usable.

Claims (1)

PATENTANSPRUCH: Verfahren zur Gewinnung von Estern aus organischen Säuren und mehrwertigen Alkoholen, dadurch gekennzeichnet, daß man bei der Veresterung in der flüssigen Phase geringe Mengen von Metallseifen zusetzt.PATENT CLAIM: Process for the production of esters from organic Acids and polyhydric alcohols, characterized in that the esterification adds small amounts of metal soaps in the liquid phase.
DEI31392D 1927-06-10 1927-06-10 Process for the production of esters from organic acids and polyhydric alcohols Expired DE514503C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI31392D DE514503C (en) 1927-06-10 1927-06-10 Process for the production of esters from organic acids and polyhydric alcohols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI31392D DE514503C (en) 1927-06-10 1927-06-10 Process for the production of esters from organic acids and polyhydric alcohols

Publications (1)

Publication Number Publication Date
DE514503C true DE514503C (en) 1930-12-13

Family

ID=7187864

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI31392D Expired DE514503C (en) 1927-06-10 1927-06-10 Process for the production of esters from organic acids and polyhydric alcohols

Country Status (1)

Country Link
DE (1) DE514503C (en)

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